Harry Potter and the Last Airbender

Connections:
- - Both have a world-changing destiny.
- - Both are orphans who lost their parents at a young age.
- - Both have a permanent mark of their foreheads; Aang has his arrow tattoo/Harry has his lightning scar.
- - Both are famous in their respective worlds.
- - Both try and face the darkness alone but their friends will not let them.
- - Both have several mentors throughout the narrative.

Connections:
- - Both serves as the main female protagonist of the story.
- - Despite no initial training, both become some of the most powerful practitoners of their mystic art due to their determination and hard-work.
- - Both can be quite motherly and tend to look after Aang/Harry & Sokka/Ron.

Connections:
- - Both serve as the main source of comic relief in the franchise.
- - Compared to the other two main characters, they are rather unexceptional. Aang & Katara are elemental-benders/Harry & Hermione seemed to have an innate skill with magic despite only being introduced to it much later in life than Ron.
- - Both are particularly fond of food and frequently talk with their mouth full.
- - Both wield a unique sword and manage to destroy a dangerous weapon with it; Sokka destroys an airship with his 'Starsword'/Ron destroys a Horcrux with Godric Gryffindor's Sword.

Connections:
- - Both serve as a rival for the main protagonist.
- - Both are born into a lineage which grants them high social standings; Heir to the Fire Lord/Born into the House of Malfoy/Black. Technically, making them both 'royalty'.
- - Both relent the dark path they have taken and decide to turn against the dark forces near the end of the story.
- - Both are given a task by Ozai/Voldemort which seems impossible and they are unlikely to succeed with; finding the Avatar who had been missing for 100 years/killing Dumbledore, the most powerful wizard of recent times.

Connections:
- - Both initially fight for the evil side but when someone important to them dies, they start to regret their past actions; death of Lu Ten/Lily Potter.
- - Both are tasked to ensure that Zuko/Draco is saved from their current dark path.
- - Both are teachers.
- - Both are crucial members of an Order; White Lotus/Phoenix.
- - They were both 'Prince's'.
- - Both are masters of making concoctions; Tea/Potions.

Connections:
- - Both are the main mentor of the chief protagonist of the story.
- - Both are portrayed as wise old men with long ashen beards and long robes.
- - Both are extremely powerful individuals who command respect and admiration from their allies and fear from their enemies.
- - Both were childhood friends with a powerful and eventually corrupt individual who started a war; Sozin/Grindelwald.
- - Both have an affinity with fire and have an animal companion who shares this; Fang the Dragon/Fawkes the Phoenix.
- - Both would die before the current corruption in their world's was defeated but their influence, advice and memory would help the young protagonist (Aang/Harry) on his journey.

Connections:
- - Both of their parents are dead during the story and both go slightly off the rails after someone important to them dies; his parents/James & Lily Potter.
- - Both are imprisoned and their personalities are affected as a result.
- - Both are described as good-looking, brave and will stand up for those they care for.
- - Despite fighting for good, both have glaring negative personality traits which is part of the reason they aren't trusted and can be described as hypocrits.
- - Both die defending the main protagonist.

Connections:
- - Both have a scarred face.
- - Both serve as a temporary teacher for the protagonist.
- - Both consider themselves cursed; Jeong considers his destructive firebending a curse/Lupin is cursed with lycanthropy.
- - Both were prominent members of an Order; White Lotus/Phoenix.

Connections:
- - Both serve as one of the first teachers of the protagonists in the series.
- - Both were very serious, stern and dryly sarcastic.
- - Both would eventually develop a soft-spot for the protagonists and let them get away with behaviour they wouldn't usually get away with.
- - Both were prominent members of an Order; White Lotus/Phoenix.

Connections:
- - Both are considered to be crazy and eccentric. Other characters have frequently described them as 'mad'.
- - Both have two-mismatching eyes.
- - Despite their appearance (old man/crippled), both are extrememly dangerous opponents who are approached carefully.
- - Both were lined up to be teachers of the main protagonist but an inevitable situation prevented this; Bumi's city was captured by the Fire Nation and he was their prisoner/Moody spent a year in a trunk being impersonated by Barty Crouch Jr.
- - Both were imprisoned in a coffin-shaped box.
- - Both were prominent members of an Order; White Lotus/Phoenix.

Connections:
- - Both are very tall compared to other characters.
- - Both are quite calm and patient.
- - Both were tracked down by the evil side but bravely thought them off and escaped.
- - Both were prominent members of an Order; White Lotus/Phoenix.

Connections:
- - Both joined a security group at a relatively young age; Kyoshi Warriors/Aurors.
- - Both of them are usually not recognisable; Suki's warrior paint/Tonks' metamorphmagus ability.
- - Both had a rivalry with, subsequently compared, Azula/Bellatrix.

Connections:
- - Both are an everyman with low social standings.
- - Both are not tolerant of those who abuse their power.
- - Both will do anything to look after their children.
- - Both are honourable, decent men.

Connections:
- - Both are very protective of their children and would do anything for them.
- - Both are more than happy to welcome visitors into their homes and make them feel comfortable.
- - Both are extremely kind, hard-working and respectful.

Connections:
- - Both are quite elderly gentlemen.
- - Both are very loyal to those who share common interests.
- - Both were members of an Order; White Lotus/Phoenix.

Connections:
- - Both are blatent criminals.
- - However, both don't like to think of themselves as such; Oh thinks of himself as a high-risk trader/Mundungus thinks of himself as an artifact dealer.
- - Both are quite confident with bartering and selling their 'acquired' goods.

Connections:
- - Both live near a heavilly wooded area; Foggy Swamp/Forbidden Forest.
- - Both care and defend flora & fauna against all those who wish to do them harm.
- - Both have a really scruffy and messy appearance.
- - Both are/can be large in size compared to those around them; Huu can control vines to make him a large suit of armour and Hagrid is half-giant.

Connections:
- - Both are fortune tellers and use the art of divination to predict the future.
- - Wu's predictions were much more reliable in that all her predictions came true whereas Trelawney's only came true when she entered a trance but her standard predictions have coincidental possibilities of being true.
- - Both held a unanimous reputation with only 1/2 people who contested it; Wu was universally loved and trusted with only Sokka doubting her/Trelawney was universally disliked and found annoying with only Lavender & Parvati cherishing her.

Connections:
- - Both were kind old ladies.
- - Both were heavily involved with the growing and nurturing of plants.
- - Thanks to their expertise and efforts, they were able to cure the protagonist's friends when they were ill.

Connections:
- - Both were rather old by the time they met the protagonist.
- - Both were part of the corrupt side (Fire Nation/Slytherin) but ultimately chose to side with the good guys. In fact, they were the first allies from those particular groups to join the protagonist.
- - Aswell, despite being consumed by weakness they always knew where their loyalties lie and stood by them when it mattered most.

Connections:
- - Both would travel all over the world to broaden their horizons.
- - Both wore headgear that covered their whole head.
- - Both were seeking something which they couldn't achieve alone; Zei seeked knowledge/Quirrell seeked power.
- - Both would eventually choose a dark fate which would see an end to their existence in their world; Zei would remain in Wan Shi Tong's library when it returned to the Spirit World/Quirrell allowed his body to be possessed by Voldemort's lingering soul which would eventually abandon him and leave him to die.

Connections:
- - Both are extrememly arrogant, boastful and smug.
- - Both have a loyal, devoted fanbase.
- - Both hold a secret that contradicts their first impression.

Connections:
- - Both were adept in knowledge at otherworldly matters and became teachers of it; the Spirit World/the Stars & Future-telling.
- - Both of them were not aligned with a single organisation.
- - Both felt more at home with nature and living out under the stars.

Connections:
- - Both worked at a school.
- - Both were notorious for being extremely strict and harsh with students.
- - Both were fiercely defensive of the books in their care; be it content or the pages themselves!

Connections:
- - Both were teachers in a school.
- - Both were strict and heavily defended their subject.
- - Both served minor roles with little development.

Connections:
- - Despite both living in a fantasy world, neither have any supernatural abilities.
- - Both serve as comic relief throughout their multiple appearances.
- - Both were supporters of corporal punishment.

Connections:
- - Both were elderly ladies.
- - Both specialised in the healing arts of their particular supernatural power.
- - Both served a minor yet useful role in the series.

Connections:
- - Both are spectre-like entities; The Painted Lady is a Spirit/ Helena Ravenclaw is a Ghost.
- - Both have the title of Lady; The Painted Lady/The Grey Lady.
- - Both were described as beautiful.
- - Both of them disappeared when their 'lives' became difficult; The Painted Lady fled due to all the pollution in the Jang Hui River plus she was no longer respected/Helena could not live up to her mother's expectations and so ran away to hide from it all.

Connections:
- - Both are ghosts.
- - Both died under tragic circumstances.
- - Both were quite emotional about their death and decided to haunt the vicinity

Connections:
- - Both have six siblings which are all the same gender; Ty Lee has 6 sisters/Ginny has 6 brothers.
- - Both had energetic and lively personalities.
- - Both were very popular, especially amongst boys.
- - Both have a special affinity with animals.

Connections:
- - Both were initially rather unexceptional with their supernatural talents.
- - Both were quite awkward and clumsy.
- - Both garnered enmity from a previous compared character who was their teacher; Pakku/McGonagall.

Connections:
- - Both had a habit of being blunt with the truth, even to the point of embarrassing others.
- - Both of them were introduced later in the series.
- - Both were also highly perceptive and could usually offer sound advice.
- - Both of their parents are forced to use unscrupulous measures when they feel their child is in danger.
- - Both had an initially tumultuous relationship with a previously compared main character; Katara/Hermione.

Connections:
- - All are very close; Hakoda and Bato have even been described as brothers of which Fred and George already are.
- - They hold a familial connection with the protagonist's best friend; Sokka/Ron.
- - All were notorious pranksters in their youth.
- - Their combined ingenuity and craftiness has helped them developed numerous inventions and strategies.

Connections:
- - Both can be described as arrogant, self-absorbed and boastful.
- - Both have athletic builds and work-out.
- - Both try to pursue a relationship with one of the main female characters.
- - Both have very influential fathers who they hasten to mention to whomever they meet.

Connections:
- - Both are portrayed as popular in their school.
- - Both serve as one of the few romantic interests for the protagonist.
- - An acquaintance of theirs betrays Team Avatar/Dumbledore's Army to the administration of the school.

Connections:
- - Both were aligned with the corrupt side; The Fire Nation/Slytherin.
- - Both were disrespectful toward an earlier compared character, even though they were on the same side; Zuko/Draco.
- - Both were rather arrogant and keen for confrontation although it never came to be.

Connections:
- - Both were sets of identical twins.
- - Although seemingly identical, the did have a distinctive difference that usually run in the family; Poi is an Earthbender whereas Ping isn't/Padma was sorted into Ravenclaw whereas Parvati was sorted into Gryffindor
- - Alliteration anyone?

Connections:
- - Both are enthusiastic young boys.
- - Both are instantly impressed by everything the protagonist does.
- - Both attended a school for priveliged young individuals.

Connections:
- - Both were a close father-son relationship.
- - Tyro/Amos held semi-important roles in their respective worlds; one of the leaders of the mining village/employee of the Ministry.
- - Despite initial friction, Haru/Cedric were able to team up with the protagonist.

Connections:
- - Both attained an inhuman beauty and had light-coloured hair; Yue was blessed by the Moon Spirit and Fleur was quarter-Veela.
- - Both are the object of affection for the protagonist's best friend; Sokka/Ron.
- - Both have a compassionate side which eventually opens up as the story unfolds.

Connections:
- - Both are taciturn, serious and proud.
- - Both are affected by past attrocities on their families.
- - Both are exceedingly skillful beyond their years.

Connections:
- - Both are immensely large individuals with simple minds.
- - Both can make the earth shake; through Earthbending/footsteps.
- - Both took part in a crucial battle against insurmountable odds.

Connections:
- - Both were intelligent men and inventors; numerous machines/wands.
- - Both were blackmailed by the evil forces to do their bidding; build them weapons/inform them on wandlore.
- - Both are captured by the evil forces and imprisoned.

Connections:
- - Both were high-ranking members of the good side with high esteem.
- - Both tried to use the protagonist to end the war on their own terms.
- - Although, they were opposed by the protagonist when they parted ways, this didn't stop them helping them once the evil side took over; Fong sent troops to help with the Fire Nation invasion/Scrimgeour was tortured but never gave up Harry's whereabouts.

Connections:
- - Both were leaders of a powerful organisation.
- - Both were ignorant of the war and didn't believe the initial claims that it was happening.
- - Both were forced to leave their post due to their blunders and inexperience.

Connections:
- - Both were extremely ambitious and important members of their society.
- - Both of them lost their wives which affected them in a profound way.
- - Even though their son did questionable things, they still loved them and would do anything to save them.

Connections:
- - Both were notorious gamblers.
- - Both were willing to cheat to ensure that they won their respective bets.
- - Both would eventually lose a lot of money due to the protagonists.

Connections:
- - All were overly protective of their only child.
- - All were willing to hide away the child under their care; The Bei Fong's hid their daughter and her blindness whereas the Dursleys hid their nephew as they saw him as an embarrassment.
- - The wife of the couple is named after a flower.

Connections:
- - Both take an instant disliking to the protagonist.
- - Both are bullies who like to push others around.
- - Both are prone to weaselling out of situations and shifting the blame onto others.

Connections:
- - Both are old men with a debilitating handicap; Ding's lack of upper body strength/Frank's stiff leg.
- - Both were extremely grouchy and don't mix well with others.
- - Both were victims to the mystic arts although either of them didn't know what was happening; Ding was being controlled by bloodbending/Frank was subject to leglimency which unravelled his cover story.